Celtic will qualify for the knockout stage for the first time since 2008 if they take more points from their match than Benfica do against Barcelona at Camp Nou.
Barcelona have already won Group G and are favourites to take three more points, but it was a worry for Celtic that the squad they announced yesterday did not contain Xavi, Andres Iniesta, Pedro, Jordi Alba, Cesc Fabregas or Javier Mascherano.
That may be hugely encouraging for Benfica, although they will still have to contend with Lionel Messi.